MDT to R Converter
MDT is not used on this date
This converter uses MST (GMT -7), the offset Denver uses on this date. Open the MST converter.Quick answers
For most of the year, MDT is 1 hour behind R. During seasonal clock changes, MST is 2 hours behind R.
For most of the year, working hours of 9:00 am to 5:00 pm in MDT correspond to 10:00 am to 6:00 pm in R. During seasonal clock changes, working hours of 9:00 am to 5:00 pm in MST correspond to 11:00 am to 7:00 pm in R.
Compare MDT time with R time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
Mountain Standard Time is 2 hours behind Romeo Time Zone
5:00 am05:00 in MST is 7:00 am07:00 in R
MST to R call time
Best time for a conference call or a meeting is between 9am-3pm in MST which corresponds to 11am-5pm in R
5:00 am05:00 Mountain Standard Time (MST). Offset UTC -7:00 hours
7:00 am07:00 Romeo Time Zone (R). Offset UTC -5:00 hours
5:00 am05:00 MST / 7:00 am07:00 R
| MST | R |
|---|---|
| 12am (midnight) | 2am |
| 1am | 3am |
| 2am | 4am |
| 3am | 5am |
| 4am | 6am |
| 5am | 7am |
| 6am | 8am |
| 7am | 9am |
| 8am | 10am |
| 9am | 11am |
| 10am | 12pm (noon) |
| 11am | 1pm |
| 12pm (noon) | 2pm |
| 1pm | 3pm |
| 2pm | 4pm |
| 3pm | 5pm |
| 4pm | 6pm |
| 5pm | 7pm |
| 6pm | 8pm |
| 7pm | 9pm |
| 8pm | 10pm |
| 9pm | 11pm |
| 10pm | 12am (midnight) |
| 11pm | 1am |
| 00:00 | 02:00 |
| 01:00 | 03:00 |
| 02:00 | 04:00 |
| 03:00 | 05:00 |
| 04:00 | 06:00 |
| 05:00 | 07:00 |
| 06:00 | 08:00 |
| 07:00 | 09:00 |
| 08:00 | 10:00 |
| 09:00 | 11:00 |
| 10:00 | 12:00 |
| 11:00 | 13:00 |
| 12:00 | 14:00 |
| 13:00 | 15:00 |
| 14:00 | 16:00 |
| 15:00 | 17:00 |
| 16:00 | 18:00 |
| 17:00 | 19:00 |
| 18:00 | 20:00 |
| 19:00 | 21:00 |
| 20:00 | 22:00 |
| 21:00 | 23:00 |
| 22:00 | 00:00 |
| 23:00 | 01:00 |
Mountain Daylight Time
Offset: MDT is 6 hours behind Greenwich Mean Time (GMT) and is used in North America
Countries using this time zone: Canada, Mexico, United States
Principal Cities: The largest city in the MDT time zone is Calgary in Canada, with about 1.02 million people. Other major cities in this time zone include Edmonton, El Paso, Denver, Albuquerque.
French: HAR - Heure Avancée des Rocheuses
Spanish: MT - Zona Pacífico

Daylight Saving: Mountain Daylight Time (MDT) is a daylight saving/summer time zone, but some places set clocks back one hour during winter and observe Mountain Standard Time (MST).
End: Mountain Daylight Time (MDT) ended on Sunday, November 2, 2025 at 2:00 am local time and clocks were set one hour back to Sunday, November 2, 2025, 1:00 am local standard time instead. Daylight saving ends annually on the first Sunday of November
Start: Mountain Daylight Time (MDT) starts on Sunday, March 8, 2026 at 2:00 am local time and clocks are set one hour forward to Sunday, March 8, 2026, 3:00 am. Daylight saving starts annually on the second Sunday of March
MDT representations, usage and related time zones
- -06 - basic short
- -0600 - basic
- -06:00 - extended
- -0600 - sign character (-) followed by a four digit time providing hours (06) and minutes (00) of the offset. Indicates an offset of six hours to the west of the zero meridian.
- Sierra - Military abbreviation for MDT
- S - short form of 'Sierra'
- America/Boise
- America/Cambridge_Bay
- America/Ciudad_Juarez
- America/Denver
- America/Edmonton
- America/Inuvik
- America/Shiprock
- America/Yellowknife
- Canada/Mountain
- MST7MDT
- Navajo
- US/Mountain
- CST - Central Standard Time
- CT - Central Time
- MDT - Mountain Daylight Time
- EAST - Easter Island Standard Time
- GALT - Galapagos Time
- S - Sierra Time Zone
Romeo Time Zone
Offset: R is 5 hours behind Greenwich Mean Time (GMT) and is used in Military
Daylight Saving: Clocks in Romeo Time Zone (R) do not change for daylight saving time, so R stays the same throughout the year. Other time zones may set clocks forward in summer and back in winter.
R representations, usage and related time zones
- -05 - basic short
- -0500 - basic
- -05:00 - extended
- -0500 - sign character (-) followed by a four digit time providing hours (05) and minutes (00) of the offset. Indicates an offset of five hours to the west of the zero meridian.
- Romeo - Military abbreviation for R
- R - short form of 'Romeo'
- CDT - Central Daylight Time
- EST - Eastern Standard Time
- ET - Eastern Time
- COT - Colombia Time
- CST - Cuba Standard Time
- EASST - Easter Island Summer Time
- ECT - Ecuador Time
- PET - Peru Time
- R - Romeo Time Zone
